<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form>
    用户名:<input type="text" name="username" />
    密码:<input type="password" name="password"/>
    <input type="submit" value="提交">
</form>

</body>
</html>